Socioeconomic and sociodemographic differences in women's group attendance (ORs), per intervention year, trial in Malawi
| Malawi trial | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Year 1 | Year 2 | Year 3 | Year 4 | p Value SP×year* | |||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | ||
| Maternal education, years schooling | |||||||||
| Never went to school | 1 | 1 | 1 | 1 | |||||
| 1–4 | 1.22 | (0.96 to 1.55) | 1.07 | (0.85 to 1.35) | 0.93 | (0.74 to 1.17) | 0.93 | (0.71 to 1.21) | |
| 5–10 | 1.12 | (0.89 to 1.42) | 0.98 | (0.78 to 1.22) | 0.76 | (0.61 to 0.94) | 0.80 | (0.62 to 1.03) | |
| 11+ | 0.59 | (0.33 to 1.08) | 0.89 | (0.54 to 1.47) | 0.53 | (0.31 to 0.91) | 0.68 | (0.39 to 1.18) | |
| p Value† | 0.058 | 0.746 | 0.009 | 0.183 | 0.386 | ||||
| Household economic status | |||||||||
| Poorest | 1 | 1 | 1 | 1 | |||||
| Next poor | 1.16 | (0.84 to 1.59) | 1.23 | (0.92 to 1.64) | 1.08 | (0.80 to 1.45) | 1.02 | (0.75 to 1.40) | |
| Middle | 1.27 | (0.99 to 1.63) | 1.23 | (0.97 to 1.55) | 1.05 | (0.83 to 1.32) | 1.14 | (0.89 to 1.47) | |
| Next rich | 1.17 | (0.94 to 1.46) | 1.24 | (1.01 to 1.51) | 0.96 | (0.79 to 1.18) | 1.09 | (0.88 to 1.36) | |
| Rich | 0.80 | (0.51 to 1.26) | 1.00 | (0.67 to 1.50) | 0.85 | (0.55 to 1.32) | 0.60 | (0.38 to 0.95) | |
| p Value† | 0.167 | 0.224 | 0.815 | 0.090 | 0.873 | ||||
| Maternal age, years | |||||||||
| <20 | 1 | 1 | 1 | 1 | |||||
| 20–24 | 1.48 | (1.12 to 1.95) | 2.48 | (1.86 to 3.29) | 2.72 | (2.06 to 3.58) | 2.27 | (1.68 to 3.07) | |
| 25–29 | 1.89 | (1.41 to 2.53) | 2.98 | (2.21 to 4.02) | 3.96 | (2.96 to 5.30) | 3.06 | (2.24 to 4.19) | |
| 30–34 | 1.59 | (1.16 to 2.19) | 3.40 | (2.49 to 4.65) | 3.99 | (2.92 to 5.44) | 4.61 | (3.28 to 6.48) | |
| 35+ | 1.83 | (1.31 to 2.54) | 3.40 | (2.44 to 4.73) | 4.88 | (3.52 to 6.77) | 4.72 | (3.34 to 6.69) | |
| p Value† | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||||
| Gravidity | |||||||||
| First pregnancy | 1 | 1 | 1 | 1 | |||||
| Not first pregnancy | 1.61 | (1.28 to 2.02) | 3.07 | (1.68 to 3.07) | 3.87 | (3.10 to 4.84) | 4.96 | (3.83 to 6.41) | |
| p Value† | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||||
*Combined Wald test, to test if the effect of social position on attendance had changed statistically significantly over the years.
†Combined Wald test for null hypothesis that overall effect of social position was equal to 1 (no effect).